Federal Analysis
Federal Circuit Clarifies Patent Restriction Responses
March 16, 2026
The Federal Circuit's ruling in Focus Products Group Int'l, LLC v. Kartri Sales Co. underscores the significant impact that responses to patent office restriction requirements have on the scope of patent claims and infringement outcomes. This decision highlights the necessity for patent applicants, including government contractors and procurement professionals involved in intellectual property management, to adopt precise and strategic prosecution practices. Specifically, applicants should explicitly contest examiner characterizations and consider filing divisional applications to preserve the full scope of their inventions and avoid unintended claim narrowing.
- Why this matters: Procurement professionals managing patent portfolios or evaluating contractor intellectual property should be aware that prosecution conduct can materially affect patent enforceability and competitive positioning.
- Patent applicants must document disagreements with restriction requirements to prevent claim scope disavowal, which can influence contract negotiations and licensing.
- Organizations involved in government contracting should integrate disciplined patent prosecution strategies to safeguard innovation assets critical to competitive advantage.
- Legal and IP advisors supporting procurement should emphasize the importance of clear record creation during patent prosecution to mitigate risks of claim limitation.
What patent applicants say and do not say during prosecution can carry lasting consequences, including when responding to procedural actions like restriction requirements.
— Cameron Anstess
Applicants should consider including an explanation of their disagreement to create a record that indicates claim scope was not disavowed through election.
— Michael D. Turner
Agencies
Federal Circuit